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簡(jiǎn)單實(shí)現(xiàn)“全選”“反選”“取消”功能

更新時(shí)間:2018年08月03日14時(shí)28分 來(lái)源:傳智播客 瀏覽次數(shù):

簡(jiǎn)單實(shí)現(xiàn)“全選”“反選”“取消”功能

[PHP] 純文本查看 復(fù)制代碼
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<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<table id="content" align="center" width="70%" rules="all" cellspacing="0" cellpadding="2" border="1">
    <tr>
        <th> </th>
        <th>ID</th>
        <th>姓名</th>
        <th>綽號(hào)</th>
    </tr>
    <tr>
        <td><input type="checkbox" name="id[]" value="1"></td>
        <td>1</td>
        <td>宋江</td>
        <td>及時(shí)雨</td>
    </tr>
    <tr>
        <td><input type="checkbox" name="id[]" value="2"></td>
        <td>2</td>
        <td>盧俊義</td>
        <td>玉麒麟</td>
    </tr>
    <tr>
        <td><input type="checkbox" name="id[]" value="3"></td>
        <td>3</td>
        <td>吳用</td>
        <td>智多星</td>
    </tr>
    <tr>
        <td><input type="checkbox" name="id[]" value="4"></td>
        <td>4</td>
        <td>魯智深</td>
        <td>花和尚</td>
    </tr>
    <tr>
        <td><input type="checkbox" name="id[]" value="5"></td>
        <td>5</td>
        <td>林沖</td>
        <td>豹子頭</td>
    </tr>
</table>
<table align="center" width="70%" rules="all" cellspacing="0" cellpadding="2" border="1">
    <tr>
        <td>
            <input type="button" value="全選" id="quanxuan">
            <input type="button" value="返選" id="fanxuan">
            <input type="button" value="取消" id="quxiao">
        </td>
    </tr>
</table>
<script>
    var checkboxs = document.getElementById('content').getElementsByTagName('input');
    document.getElementById('quanxuan').onclick = function () {
        for(var i=0; i<checkboxs.length; i++){
            if(checkboxs[i].checked == false){
                checkboxs[i].checked = true;
            }
        }
    }
    document.getElementById('fanxuan').onclick = function () {
        for(var i=0; i<checkboxs.length; i++){
            if(checkboxs[i].checked == false){
                checkboxs[i].checked = true;
            }else{
                checkboxs[i].checked = false;
            }
        }
    }
    document.getElementById('quxiao').onclick = function () {
        for(var i=0; i<checkboxs.length; i++){
            if(checkboxs[i].checked == true){
                checkboxs[i].checked = false;
            }
        }
    }
</script>
</body>
</html>


效果：

作者：黑馬程序員前端與移動(dòng)開發(fā)培訓(xùn)學(xué)院
首發(fā)：http://php.itcast.cn/

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